Abbreviation for 'gallons per minute,' a unit of measurement for flow rate commonly used in plumbing, irrigation, and fluid systems. Indicates volume of liquid flowing through a system per unit time.
Acronym formed from English words 'gallons per minute.' 'Gallon' derives from Old French 'galon,' while 'minute' comes from Latin 'minutus' (small). The abbreviated form became standard in technical and industrial contexts during the 20th century.
GPM measurements reveal fascinating inefficiencies in our daily lives - a standard showerhead flows at 2.5 GPM, meaning a 10-minute shower uses 25 gallons, while a dripping faucet at one drop per second wastes over 3,000 gallons annually. High-efficiency appliances have revolutionized GPM standards, with some modern fixtures achieving the same performance at half the flow rate.
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